Ladle-tilting apparatus.



WIT. HURST & c. LLRENNEY.

'LADLE TlLTlNG APPARATUS.

w m/ N, J, a 9% fl f V P vA n QM M 1 m w. T. HUR'ST & c. L. KENNEY.

LADLE mum; APPARATUSK v -A PP[ .ICATf0N man MAY 28. m1.

' PatentedFeb. 5,1918.

j 31 andthe (55131624 will be wound-upon the drum 20, thereby'lowering.or pulling down theis'heaves 23 secured to the coupling 18 of chain 17,thereby raising the ladle 2 so-as to I revolve it"upo-n' the trunnions(isupported in the sockets 7 on the buggy 3, until the socket H '8engages over the trunnion bearingt) above theipot'iring pot 5. The ladle2will then. be g lifted freefrom the-buggyB and besupport chain 17.During this'operation the cable ed solely byrthe trunnion bearing 9 andthe u 2Twillhave been woundupon the slieavelfi Land {the cable .29 willhave been unwound from the sub-drum 21'. During the lifting operationthe angle ,ofpull on the chain 17 will be changed and the positionof'themast I will naturally be moved toward" the pour- 7 ing pot or forwardfrom its normal vertical position due to the forwardly tilting action ofthe ladle 2; Varying the position of the load and the thrust of themast. The mast sb i g rigidly mounted'on the base 10,'wi11 frock"with'the base on the pedestal'12, 'due to its convex 1 formation, andthus automati- 25 i @To'lower the ladle to its normal position on thebuggy, the motor 32 is reversed and V the cable' 24 willbe unwound fromthe drum 20 and the cable 29 will be wound uponthe cally-adjust itselfto theangledesired.

sub-drum Ql-thereby revolving the sheave 16 and lowering the chain 17topermit the ladle to descend to its normal position, whereupon the baseand-mastfwill automatically rock ;,ba1 t0 their origin a1 position.

' tinned operation of the motor will continue The conto wind the cable29 upon the sub-drum21 and revolve the sheave 16' until the chain 17 islslack fthereby permitting the disengage- 7 ment of the 'lioolrlt), y v5 r f e 40 f? fIt will thus beseen that'we havefprovided asiniple,eflicient and novel construction adapted'for the purposedescribed,.'composed V offew parts, and providing an automatical'ly'adjustable mechanislmwhereby a-regu .45

lar',even', comparatively slow movement may be imparted to the ladle,Heretofore, such V -ladles.have*been raisedby overhead cranes f f" iand' "the change ,of' position necessary has Vbeenfcomp'ensatediforbythemovingjof thef Mto jeifectfa jerky or imeven'dlStIlblltlOlltQf f ,the'molten' metal. YVith ourdevice these ob-.car'riage on fltheoverhead crane which is apt ".j'ec'tionsiareovercome, the ladle isfilifted slowly and the'tripping operation orchange,

of posit on of the mast, and of'the ladle itselffis; smooth and evenandtheqflow-ef '5 metal is .Tconsequently even; gradual andwithoutobjeetiohablesucldenflow; .1 A's will' be readilyseen, anindividualliftinggapparatus' may .bei provided for each ouringposition,'f.so ftliat "a plurality of 7 adles'and c astingmachines maybe served. at

' same time, with;out interference, which is a matter. OfiCOllSldBIflblGadvantage over the t ve i sane y iws n remp It will also be readily seenthat the use of our invention will not interfere with the operation ofoverhead cranes and tliat'such cranes may readily pass over our improvedhoisting means. y 7 Having thus described we claim is:

1. Automatically adjustable weight liftour invention, what 'ingmechanism comprising a supporting pedestal, a. rocking base mountedthereon having a rigidly. mounted upstandin mast provided with. aterminal sheave wlieel, a

flexible lifting. element passing over said sheave wheel andprovided'with a pulley at one side and a load engaging terminal at theother side of the sheave wheel, a series 7 elementis adapted to bewound, and a second flexible element secured to; said sheave andtrainedabout said drum and adapted to lower said lifting element whensaid drum is reversed.

3. A device of the class described comprising a base having a convexunder side,

a pedestal for said base, a rigid mast on said base,'a suitable sheavemounted on said mast, afiexible lifting element trained about saidsheave, means for raising said flexible lifting element, and a secondflexible element secured I tosaid sheave and adapted to be opera-ted bysaid raisingmeans when reversed to cause a lowering of said liftingelement.

.4. A; device of the class described comprising albase, theunder side ofsaid base a being convex or rocker shaped, a pedestal forsaid base,1ar1g1d mast on sald base,

suitable sheaves and cablejmounted on said mast, a, drum on whichsaidjcable is adapted to be wound, a supplemental drum formed on saidfirst-named drum, a cable" trained about saidxsupplemental drum andsecured tolone of 'said sheaves to lower the lifting .cable, and meansfor operating .said drums. .5.1A device .of the class described .com-

' prising ab ase, the under side of said base being convex orrockershaped, a pedestal forsa'id bjasa a rigid mast on said base, a sheavemounted on'said mast, a lifting chain I trained over said sheave,a-series of sheaves and cablcjfor raising said chain, a drum onwlnchsaid cable isadapted tobe wound, a supplemental (11.111211, a cablesecured tosaid first-mentioned sheaveand adapted to be wound on saidsupplemental drum to lower Sflld chain, and means for operatlng saiddrums. V d V d 6. A device of the class described compris-' ing a base,the under side of said base being convex or rocker shaped, a pedestalfor said. base, a'rigidmast on said base, a sheave mounted on said mast,a lifting chain trained over said sheave, a series of sheaves and cablefor raising said chain, a drum on which said cable is adapted to bewound, a

supplemental drum formed integral with saidfirst-nameddrum and being ofsmaller diameter, a cable secured to said first-mentioned sheavev andadapted to be wound on said supplemental drum to lower said chain, andmeans-for simultaneously operating said drums. Y 1 e 7. A device of theclass described comaprising ,a base, the under side of said base beingconvex or rocker shaped, a pedestal for said base, a rigid'inast on sa1dbase, a

sheave mounted on the upper .endof saidj mast, a lifting chain trained"over said sheave, a seriesof sheaves journaled in said base, a secondseries of sheaves secured to said lifting chain, a drum journaled insaid base, a cable trained about said series of heaves and adapted to bewound upon said drum, a second cable secured to said firstnamed sheave,a sheave secured on said lastnamed cable, a thlrd cable trained oversa1d last-named sheave, a supplemental drum for said last-namedcable,and means for si- Gopies of this patent may be obtained for multaneouslyoperating said drums and cables. 7

8. A device of the class described comprisinga base, the under side ofsaid base belng convex or rocker shaped, a pedestal for said base, arigid mast on said base, a

sheave mounted on the upper end of said mast, a lifting chain trainedover said sheave, a series of sheaves journaled in said base, a secondseriesof sheaves secured to said lifting chain, a drum journaled in saidbase, a. cable trained about said series'of sheaves and adapted to bewound upon said drum, a second cable secured to saidfirst- I namedsheave, a supplemental drum for said last-named cable and means forsimul taneously operating said drums and cables.

9. A device of the class described comprising a base, a pedestal forsaid base, a mast on said base, a suitable sheave mounted on said mast,a V flexible lifting element trained aboutsaid sheave and provided witha sheave pulley at one side and a load engaging terminalatthe other sideof said In testimony whereof we hereunto aflix WILLIS T. HURST. 1 CARL LKENNEY. H

five cents eaclyby addressing the Commissionerof iatenta,

Washington, D. 0. i

our signatures.

